Stove-pipe lock



(No Model.)

B. GASH. STOVE PIPE LOCK.

No. 403,425. Patented May 14, 1889.

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UNITED STATES PATENT OFFICE.

EDGAR GASH, OF MAOOMB, ASSIGNOR OF ONE-HALF TO BENJAMIN B. DURFEE, OF PEORIA, ILLINOIS.

STOVE-PIPE LOCK.

SPECIFICATION forming part of Letters Patent No. 403,425, dated May 14, 1889. Application filed January 2, 1889. Serial No- 295,187. (No model.)

To all whom, it may concern.-

Be it known that I, EDGAR GAsH, a citizen of the United States, and a resident of Macomb, in the county of HcDonough and State of Illinois, have invented a new and useful Improvement in Stove-Pipe Locks, of which the following is a specification, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

The object of this invention is to construct a simple device for locking and holding a stove-pipe firmly to a brick or other constructed line; and its novelty consists in a device where the locking-bar can be adjusted to different lengths, so that it can be attached to flues of different thicknesses, all of which will be fully set .forth in the following description, and pointed out in the claim.

In the drawings, Figure 1 is an elevation, partly in section, showing the manner in which the lock secures the pipe to the flue. Fig. 2 shows the locking-bar in perspective. Fig. 3 shows the clamping-bolt detached.

In the drawings, A represents the stove-pipe, a part being cut away to show the manner of locking the pipe in the flue B. The lock-bar c is constructed as shown in Fig. 2, the front end being bent up to form an inside stop, if, the rear end being enlarged, so as to admit the slot a. On one side of this slot at are formed teeth cl. The clamping-bolt 02 (shown in Fig. 3) is threaded nearly its whole length and has attached to its head a small toothed wheel, 2'. The teeth in this wheel tare of the same pitch as the teeth cl in the slot a in the lock-bar c, which arrangement is for the purpose of adjusting the lock-bar c to different lengths, as may be required. The upper end of this bolt 0?. is flattened, so that it can be turned with thumb and finger or held while the thumb-nut s is turned either up or down.

The operation is as follows: At the proper distance from the end of the pipe A, that passes into the flue B, a hole is made large enough to allow the bolt n to pass through after the thumb-nut s is taken 0E. The lock-bar c is then placed in the pipe A, and the bolt n is passed through the slot on in the lock-bar and through the hole described in the pipe. The thumb-nut sis then placed on the bolt and screwed down sufficient to raise up the inside stop, t, level with the end of the pipe. Then the pipe is inserted into the flue B. Thelockbar 0 is then adjusted to the proper length as follows: The teeth on the side of the slot a in the lock-bar and the teeth in the wheel 1' on the head of the boltn mesh together, and by turning the bolt the lock-bar, by means of the toothed gear, can be slid in or out, as desired, until'the lock-bar c is in the required position, the inside stop, t, being up firm against the inside of the flue B. The nutsis then turned down until it is tight, which clamps the pipe and lock-bar together and holds the same firmly in the flue. (See Fig. 1.)

Having thus described my invention,whatI claim as new, and desire to secure by Letters Patent, is-

In combination with a stove-pipe, alocking device consisting of a bar, 0, having a slot, a, cut so as to form the teeth (Z, for the purpose of adjustment, and the inner end being bent up at right angles to form an inside stop, If, and the stay-bolt n, having thumb-nut s, and a toothed wheel, '5, formed on the head for adjusting the bar 0 and securing it firmly to the stove-pipe, substantially as shown and described.

EDGAR GASH.

Witnesses:

T. J. PRICE, D. G. PRICE. 

